Home / 20,549.12-30,809.30-10,529.24

Finding the Fourth Proportional to 20,549.12, 30,809.30 and 10,529.24

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Solution

The fourth proportional to 20,549.12, 30,809.30 and 10,529.24 is: 15,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.12 : 30,809.30 = 10,529.24 : x
  2. Step 2: Convert to fraction form
    20,549.12/30,809.30 = 10,529.24/x
  3. Step 3: Cross multiply
    20,549.12x = 30,809.30 × 10,529.24
  4. Step 4: Simplify right side
    20,549.12x = 324,398,307.24
  5. Step 5: Solve for x
    x = 324,398,307.24/20,549.12
  6. Step 6: Final answer
    x = 15,786.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.